Frequency Discrimination in a Simultaneous Two-Tone Signal

• Authors: P. Kleczkowski , M. Pluta
• Languages of publication: EN

Abstracts

EN

Discrimination of just noticeable change in pitch has been widely investigated. In contrast, works on discrimination of two simultaneous pitches produced by two tones have been scarce. In this work two methods were used to find the minimum frequency interval in a two-tone at which listeners perceive two distinct pitches. In the first, listeners tuned manually the frequency interval between components in a two-tone. In the second, the frequency interval between tones in a two-tone was switched between five different fixed values, and a pitch of a probe tone was compared with pitches in a two-tone. Both methods were used in two different groups of listeners, musicians and non-musicians. The first method yielded substantially narrower intervals. Both methods revealed that musicians were able to discriminate pitches at narrower intervals than non-musicians. The raw results of tests were evaluated by two approaches, one was based on fitting of the psychometric function and the other on statistical tests.

Keywords

EN

43.66.-x

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 1A
• Pages: A-120-A-125

Dates

published

2012-01

Contributors

author

P. Kleczkowski

• AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics Department of Mechanics and Vibroacoustics, al. A. Mickiewicza 30, 30-059 Krakow, Poland

author

M. Pluta

• AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics Department of Mechanics and Vibroacoustics, al. A. Mickiewicza 30, 30-059 Krakow, Poland

References

• [1] A.J.M. Houtsma, L.A. Goldstein, J. Acoust. Soc. Am. 51, 520 (1972)
• [2] A. Mielczarek, A. Dobrucki, Proc. Forum Acust., Budapest 2005, p. 1629
• [3] W.R. Thurlow, S. Bernstein, J. Acoust. Soc. Am. 29, 515 (1957)
• [4] R. Plomp, J. Acoust. Soc. Am. 36, 1628 (1964)
• [5] R. Plomp, A.M. Mimpen, J. Acoust. Soc. Am. 43, 764 (1968)
• [6] R. Plomp, Aspects of Tone Sensation: A Psychophysical Study, Academic Press, London 1976
• [7] L.L. Feth, H. O'Malley, J. Acoust. Soc. Am. 62, 940 (1977)
• [8] K.H. Arehart, P.F. Rosengard, J. Acoust. Soc. Am. 105, 2454 (1999)
• [9] Siggen, http://www.comp.leeds.ac.uk/jj/linux/siggen.html, access: 18.10.11
• [10] A.R. Jennings, Ph.D. Thesis, University of Newcastle Upon Tyne, 2005
• [11] W.H. Press, S. Teukolsky, Numerical Recipes in C: The Art of Scientific Computing, 2nd ed., Cambridge University Press, Cambridge 1992
• [12] F.A. Wichmann, N.J. Hill, Perception Psychophys. 63, 1293 (2001)
• [13] H. Dai, C. Micheyl, J. Acoust. Soc. Am. 130, 263 (2011)

Identifiers

DOI

10.12693/APhysPolA.121.A-120